perf: harden runtime for weaker hardware

world/combat/HostileCombatant.gd

@@ -5,6 +5,7 @@ var combatant: CombatantStateRecord
 var simulation_manager: Node
 var _flash_tween: Tween
 var _spawn_tween: Tween
+var _last_health := 0.0
 
 
 func _ready() -> void:
@@ -24,22 +25,21 @@ func bind(combatant_id_value: StringName, manager: Node) -> void:
 	global_position = combatant.get_position()
 	sim_position = combatant.get_position()
 	_build_from_definition()
+	_last_health = combatant.get_health()
 	combatant.changed.connect(_on_combatant_changed)
 
 
-func _process(_delta: float) -> void:
+func _on_combatant_changed(_state: CombatantStateRecord) -> void:
 	if is_dead_visual or combatant == null or not is_instance_valid(combatant):
 		return
 	if not combatant.is_alive():
 		play_death()
 		return
 	set_sim_position(combatant.get_position())
-
-
-func _on_combatant_changed(_state: CombatantStateRecord) -> void:
-	if combatant == null or combatant.get_health() >= combatant.get_max_health():
-		return
-	_flash_hit()
+	var current_health := combatant.get_health()
+	if current_health < _last_health:
+		_flash_hit()
+	_last_health = current_health
 
 
 func _flash_hit() -> void:
@@ -51,6 +51,8 @@ func _flash_hit() -> void:
 
 
 func play_death() -> void:
+	if is_dead_visual:
+		return
 	is_dead_visual = true
 	super.play_death()
 

world/combat/combat_presentation.gd

@@ -8,7 +8,6 @@ const HOSTILE_SCENE := preload("res://world/combat/HostileCombatant.tscn")
 @export var wolf_spawn_positions: PackedVector3Array = PackedVector3Array()
 
 var hostiles: Dictionary = {}
-var _initialized := false
 var _wolves_spawned := false
 
 
@@ -20,7 +19,6 @@ func _ready() -> void:
 	simulation_manager.combatant_spawned.connect(_on_combatant_spawned)
 	simulation_manager.combatant_died.connect(_on_combatant_died)
 	simulation_manager.state_restored.connect(_on_state_restored)
-	_initialized = true
 	call_deferred("_spawn_wolves")
 	_refresh_from_state()
 
@@ -34,14 +32,6 @@ func _spawn_wolves() -> void:
 			simulation_manager.spawn_wolf(position)
 
 
-func _process(_delta: float) -> void:
-	if not _initialized:
-		return
-	for combatant_id in _hostile_ids():
-		if not hostiles.has(combatant_id):
-			_spawn_visual(combatant_id)
-
-
 func _hostile_ids() -> Array:
 	var ids: Array[StringName] = []
 	var living: Array = simulation_manager.get_living_hostile_combatants()